Calendar



CALENDAR.

Patented Jan. l, 1889.

NJFETERS. Phoxo-Lnbogmphw. Washinglnn. I l. C

UNTTEE STATES PATENT EEicE.

VWILLIAM J. ELSOM, OF CORTLAND, NEIV YORK.

CALENDAR.

SPECFICATION forming part of Letters Patent No. 395,385, dated January 1, 1889.

Application filed September 15, 1888. Serial No. 285,500. (No model.)

v be used as an attachment for a clock or fora pocket or desk calendar.

The object of the invention is to produce a calendar which shall operate with certainty by means of a trip or catch.

The invention consists in the construction and combination of parts as hereinbefore pointed out.

Figure 1 is a troni: view showingI the dial, with perforations through which the index portion of the calendar appears. Fig. 2 is a rear view showing the operating' catch or handle. Fig. I5 is a t'ront view with dial removed. Fig. i is a section with dial removed, showing the ratchet and connections by which the disk bearing numerals l to 3l is rotated. Fig. is a section showing the ratchet-andpawl mechanism by which the disk bearing names of the month is rotated. Fig. (S is a section showin the ratchet-and-pawl mechanism for turning the stanwhecl bearing the names of the days olf the week. Fig. 7 is a central crosssection on line :1r gr, Fig. 1, showing the relative arrangement of the parts. Figs. 8 to l2 are details and broken sections el parts ot' the operating mechnn ism. l

A indicaties the casing, which is preferably round to make a convellient pocket-calendar, but may be et other ii'orm convenient 'for a1'- taehment to a clock or t'or use on a desk.

l denotes the cover or bezel of thel calendar, which carries the crystal C, when such is used, and the dial, I). The dial maybe ornamented in an y desirable manner, and is perforated, as at E, Fig. 1, to expose the name of the day of the week, at h to show the name of i the month, and at G to show the day of thc i month. Ot' course these perforations may be arranged at any snitalgrle part of the dial, the indexavheels being made to correspond.

The day-index H is in for'm of a star-wheel and is nearest the dial. This star-wheel H has seven points or arms, each arm being the name of the day of the week. Behind the star-wheel H is a disk, I, bearing the names of the months. These names will be exposed between the arms of the star-wheel H, and will thus be exposed through perforations F in the dial, when in register therewith. A disk, K, concentric with disk I and star-wheel H, and preferably offset centrally to receive said disk and starwheel, has the numbers of the days of the month (1 to 31) in a ring surrounding the disk and star-wheel.

The disks I and K are made to rotate intermittingly in opposite directions by means of handle or catch L, working in a slot in the back of the case, and intervening mechanism, now about to be described.

The handle L is attached to a sector, 1. This sector has notched edges, which grasp the sides of a sector-shaped slot, 2, in the baseplate 3 of the calendar. The inner edge of the sector 1 has a spring-pawl, 4, which engages a seven-toothed ratchet-wheel, 5. The ratchet 5 is held from backward movement by a spring-pawl, 6. The wheel 5 is connected to a collar, 7, which is free to rotate on central post, 8, and the collar is attached by a firm frictional contact (or may be by a pin or by solder) to the star-wheel H. By swinging or reciprocating the sector 1 in its slot the ratchet-wheel 5 may be moved notch by notch, and will thus move the star-wheel. Thus each n'lovement oi the handle I. back and forward will move the star-wheel far enough to expose a new arm infront of the opening E in the dial. The sector lV has aloop, 1X, turn d back Afrom its outer edge toward the center of the dial, leaving room for the interposition of the guidepawl l1, which pawl 11 is bowshaped and pivoted at its outer end to the base-plate 3. The guide-pawl 1l has a tooth, 12, which rides on the outside oi ratchetwheel 3.0, except where a notch, 8l., permits the tooth 12 to approach nearer the center ot' said wheel 30, the gnide-pawl being pressed in by spring 13. The tooth 12 holds ratchetwheel 30 from backward movement. A hookpawl, 15, pivoted. to sector 1. has an outer bearing, 16, against the outer curved surface ot guide-pawl 11, and has its tooth or hook 16 in position to engage the teeth of ratchet IOO 20 when the guide-pawl swings in tooth l2 enters notch 31, but otherwise will. not engage said ratchet 20.

The ratchet 2O is connected to collar 4i, which is attached to the disk I. rlhe teeth on ratchet 2O tace in opposite directions from the teeth on ratchets 5 and 30. The hookpawl 15 is able to move the ratchet 20, and consequently the disk bearing the names of the month only when the pawl-guide .ll has its tooth in notch 3l, or once for each revolution of the disk I, and this movementis when the handle Ii is moving in reversed direction from that required to move ratchet 5.

rlhe ratchet-wheel 30 is concentric with stud or post 8, and is attached directly to the disk K, bearing the numbers l to 3l. The ratchet 30 has thirty-one teeth, and is actuturned-over portion lX of the sector i.

spring but is prevented from engaging the teeth of the ratchet 30 by a bearer, Si, save at a part, 35, where said bearer is cut away. Consequently the pawl 32 will revolve the ratchet 30 at each reciprocation of sector l only so far as the notch 35 permits lit to do, unless dog 37 engages 3G or 2G, when two or more spaces are moved. The holding-tooth 36 prevents backward movement ot' the ratchet 2O by frictional contact.

The ratchet 2O carries an oscillating piece, 2l, having a pin, 22, passing through a slot in said ratchet-wheel. switch-bars 23 and 2t on the plate 3. The pin 2l is held in contact with the switch-bars by spring 2f'.

The switch-bars are shaped to press the oscillating piece 2l so that its head 26 shall be in position to en gage the dog 87 on wheel 30 whenever the number of days in the month varies from the normal. The dog 37 is pressed down by springs SS. (A top view of the dog and a section on line -y g/ are shown in Fig. S.)

A projection, 20, on the oscillating piece 2.1. bears on a four-toothed wheel, 4:0, carried by ratchet 20. As the ratchet 2O rotates but once a year, this tour-toothed wheel will rotate but once in four years by engagement with a projection or stud, 4], on the baseplate.

The projection 26 will by the wheel -lO be thrown into a different position every fourth year from that in the other years, and the switch 23 24 will not shift the projection 2t; to the same position in leap year as in other years.

Holding' tooth or sprin 36 prevents backwardl movement of ratchet-wheel 20. Deeper notches in the edges ot' wheel 2O permit this tooth 36 to move inward far enough to engage dog 37 on ratchetwheel 30 for months with thirty days. The ratchetwheel 2O is thus held while wheel 30 moves one notch.

It will be understood that the handle of the calendar may be connected with aclock mech- This pin engages thel anisin by a link in usual manner, or thatthe calendar may be set daily by hand or by the starting ot" an engine or machine.

lVhat I claim is- I. The combination, in a calendar, ot' a baseplate provided with a sectoral slot, a handle, constructed as described, to reciprocate in said slot, ratchet-wheels mounted concentric to said slot and connected to indicating-plates, and pawls on the handle to engage said ratchets, as set forth.

2. In acalendn, a rotating disk bearing numbers and a ratchet connected thereto, a disk bearing naines ot' days connected to a ratchet having its teeth facing in opposite direction Jfrom the other atchets, and a reciprocating handle having pawls to engage all the ratchets when moving in one or the other direction.

3. The combination, in a calendar, of a ratchet connected to an indicating-plate and having a notch in its periphery, a curved guide-pawl having a tooth to enter said notch, a reciprocating handle havin a pivoted pawl resting against the guide-pawl, and a ratchetwheel in position to be acted on by said lastmentioned pawl, substantially as described.

el.. In a calendar, a ratchet and a month-indicating disk connected thereto, a second ratchet and a plate bearing the numbers of the days connected thereto, a dog in one of the ratchets, and a shifting-piece connected with the other ratchet cont-rolled by a switch in the supporting-plate, whereby the two 'atchets may turn together when the shifting-piece is in engagement with the dog, the elements in combination as set forth.

5. In a calendar, the combination ot a monthindicating disk and a ratchet mechanism to rotate the same in one direction, a plate bear ing numbers and a ratchet 'or moving in the opposite direction, a dog connected to one ratchet and a shitting-piece to the other, a switch controlling said shitting-piece, and a :tour-toothed wheel bearing on the shiftingpiece, all substantially as described, whereby the ratchets are coupled together' at certain times under the intlu ence ot' the dog and shifting-piece, as set forth.

G. In a calendar, the combination of a ratchet and a wheel carrying the names of days connected thereto, a ratchet having a different number of teeth and a number-indicater connected thereto, a reciprocating handle and separate pawls carried thereby to engage both ratchets, and a bearer against which one ot' the pawls rests during a part of its movement, whereby the ratchets are moved independently and to different distances by the same movement of the handle, as set forth.

In testimony whereof I altix my signature in presence of two witnesses.

VILLIAM J. ELSOM.

Witnesses: v

JOHN W. SUGeE'rr, ANNA D. ELsoM.

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